Lynne Roeder
Email: lynne-dot-roeder-at-pnnl-dot-gov
Twitter: @armnewsteam
 |
Scientists use detailed state-of-the art radiative transfer models to understand the radiative impact of clouds and aerosols on the Earth's radiation budget, evaluate remote sensing retrievals of cloud and aerosol properties, and develop and evaluate simpler radiative transfer models for inclusion in cloud and climate models. The ARM suite of instruments measures all of the [...]
|
 |
The Continuous Baseline Microphysical Retrieval (MICROBASE) value-added product (VAP) has been released as an official ARM VAP. Data from April 1998 through December 2009 are now available for the Southern Great Plains, North Slope of Alaska, and Tropical Western Pacific sites. Historical updates will be provided whenever additional data become available.
MICROBASE is a baseline [...]
|
 |
The first-ever 4-dimensional ARM data product, called Mapped Moments to a Cartesian Grid (MMCG), is now available for testing by the science community. Covering all major precipitation events during the Midlatitude Continental Convective Clouds Experiment, the MMCG is derived from scanning C-band ARM precipitation radar (C-SAPR) data. This value added product (VAP) was [...]
|
 |
Aerosol optical depth (AOD) measures total aerosol burden in the atmosphere. The spectral dependence of AOD, typically described by the Angstrom exponent, is also an indicator of particle size. Small Angstrom exponent values (near zero) indicate presence of large particles, and vice versa.
The newly developed AOD value-added product (VAP) provides both the wavelength-dependent values [...]
|
 |
Science data products derived from the Raman lidar (RL) are produced using a suite of five value-added product (VAP) processes. These VAP processes, jointly known as RLPROF, are run together to produce estimates of:
water vapor mixing ratio
relative humidity
aerosol scattering ratio
aerosol volume backscatter coefficient
aerosol extinction
aerosol linear depolarization ratio
cloud mask
aerosol optical depth
precipitable water vapor.
Once the suite of [...]
|
 |
A new ARM evaluation product, the ARM Cloud Retrieval Ensemble Data Set (ACRED), is now available for testing by the science community. ACRED was developed with the motivation to provide a rough estimate of the uncertainties in current retrieved cloud microphysical properties for climate model evaluation and development. It was created by assembling numerous existing [...]
|
 |
The Surface Spectral Albedo (SURFSPECALB) value-added product (VAP) has been released for operational production at the Southern Great Plains (SGP) site. This VAP creates a near-continuous best estimate of broadband and narrowband downwelling irradiance, upwelling irradiances, and surface albedo using the multifilter radiometers (MFRs) on the 10-m and 60-m towers and the multifilter rotating [...]
|
 |
Lidar cloud boundaries are a useful tool for identifying cloud base height and cloud thickness in optically thin clouds. The Micropulse Lidar Cloud Mask (MPLCMASK) value-added product (VAP) provides cloud base height, cloud top height, and backscatter coefficient for non-polarized micropulse lidar measurements. In addition, depolarization ratio is computed for polarized and fast-switching micropulse [...]
|
 |
The Microwave Radiometer Retrievals (MWRRET) value-added product (VAP) has now been released as an operational product, and data for the Southern Great Plains (SGP), North Slope of Alaska (NSA), Tropical Western Pacific (TWP) sites are now available. Data are also available for the Black Forest, Germany deployment of the ARM Mobile Facility (AMF). [...]
|
